@article{lightningopd20mitigatingstylebiasincross,
  title = {Lightning OPD 2.0: Mitigating Style Bias in Cross-Teacher On-Policy Distillation for Large Reasoning Models},
  author = {Yecheng Wu and Song Han and Han Cai},
  year = {2026},
  eprint = {2607.28449},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.28449},
}